/*
 * Copyright (C) 2009-2011 Big Muscle, http://strongdc.sf.net
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
#include "StdAfx.h"

#include "BootstrapManager.h"
#include "DHT.h"
#include "IndexManager.h"
#include "SearchManager.h"
#include "TaskManager.h"
#include "Utils.h"

#include "../client/SettingsManager.h"
#include "../client/ShareManager.h"
#include "../client/TimerManager.h"

namespace dht
{

TaskManager::TaskManager(void) :
	nextPublishTime(GET_TICK()), nextSearchTime(GET_TICK()), nextSelfLookup(GET_TICK() + 3 * 60 * 1000),
	nextFirewallCheck(GET_TICK() + FWCHECK_TIME), lastBootstrap(0)
{
	TimerManager::getInstance()->addListener(this);
}

TaskManager::~TaskManager(void)
{
	TimerManager::getInstance()->removeListener(this);
}

// TimerManagerListener
void TaskManager::on(TimerManagerListener::Second, uint64_t aTick) noexcept
{
	if (DHT::getInstance()->isConnected() && DHT::getInstance()->getNodesCount() >= K)
	{
		if (!DHT::getInstance()->isFirewalled() && IndexManager::getInstance()->getPublish() && aTick >= nextPublishTime)
		{
			// publish next file
			IndexManager::getInstance()->publishNextFile();
			nextPublishTime = aTick + PUBLISH_TIME;
		}
	}
	else
	{
		if (aTick - lastBootstrap > 15000 || (DHT::getInstance()->getNodesCount() == 0 && aTick - lastBootstrap >= 2000))
		{
			// bootstrap if we doesn't know any remote node
			BootstrapManager::getInstance()->process();
			lastBootstrap = aTick;
		}
	}
	
	if (aTick >= nextSearchTime)
	{
		SearchManager::getInstance()->processSearches();
		nextSearchTime = aTick + SEARCH_PROCESSTIME;
	}
	
	if (aTick >= nextSelfLookup)
	{
		// find myself in the network
		SearchManager::getInstance()->findNode(ClientManager::getInstance()->getMe()->getCID());
		nextSelfLookup = aTick + SELF_LOOKUP_TIMER;
	}
	
	if (aTick >= nextFirewallCheck)
	{
		DHT::getInstance()->setRequestFWCheck();
		nextFirewallCheck = aTick + FWCHECK_TIME;
	}
}

void TaskManager::on(TimerManagerListener::Minute, uint64_t aTick) noexcept
{
	Utils::cleanFlood();
	
	// remove dead nodes
	DHT::getInstance()->checkExpiration(aTick);
	IndexManager::getInstance()->checkExpiration(aTick);
	
	DHT::getInstance()->saveData();
}

}